2878000609 has 9 divisors (see below), whose sum is σ = 3164070931. Its totient is φ = 2615827720.

The previous prime is 2878000607. The next prime is 2878000633. The reversal of 2878000609 is 9060008782.

The square root of 2878000609 is 53647.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 796086225 + 2081914384 = 28215^2 + 45628^2 .

It is not a de Polignac number, because 2878000609 - 2¹ = 2878000607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878000607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 587679 + ... + 592555.

Almost surely, 2^2878000609 is an apocalyptic number.

2878000609 is the 53647-th square number.

2878000609 is the 26824-th centered octagonal number.

It is an amenable number.

2878000609 is a deficient number, since it is larger than the sum of its proper divisors (286070322).

2878000609 is an frugal number, since it uses more digits than its factorization.

2878000609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776 (or 4888 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The cubic root of 2878000609 is about 1422.4280038885.

The spelling of 2878000609 in words is "two billion, eight hundred seventy-eight million, six hundred nine", and thus it is an aban number.